Governing device for explosion or combustion motors.



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G. A. & 0. W. HULT. GOVERNING DEVICE FOR EXPLOSION 0R COMBUSTION MOTORS. APPLIOATION FILED NOV; 23, 1912. 1,103,290, Patented July 14, 1914.

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0. A. & 0. W. HULT. GOVERNING DEVICE FOR EXPLOSION OR COMBUSTION MOTORS. I APPLICATION FILED NOV. 23, 1912. I 1 1Q3,2.90 Patented July 14, 1914.

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1,103,290, u Patented July 14, 1914.

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G. A. & O. W. HULT.

GOVERNING DEVICE FOR EXPLOSION 0R COMBUSTION MOTORS.

APPLICATION FILED NOV. 23, 1912.

1,103,290. Patented July 14,1914.

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STATEd PATENT @FFTCE.

CARL ALB-1K HULT AND OSCAR W'ALFR-ID HULT, O1 STOCKHOLM, SWEDEN.

GOVERNING DEVICE FOR EXPLOSION OB COMBUSTION MOTORS.

Application filed November 23, 1912.

To all whom it may concern Be it known that we, CARL -ALRIK HULT and Oscar. WALFRID T-TULT, subjects of the King of Sweden, and residents of 1 Tnedalsgatan, Stockholm, in the Kindom of Sweden, have invented certain new and useful Tmprovements in Governing Devices for EX- plosion or Combustion Motors, of which the following is a specification, reference being made to the accompanying drawings.

The present invention relates to a governing device for such explosion or combustion motors as have a motive fluid pump, the piston of which is causedv to perform its functional movement by a part driven by the motor. A governing device carried out in accordance with the present invention is characterized mainly by the fact that the said part acting on the piston is movable toward and from the center line of the motor shaft and connected with a speed governor, mounted on the said shaft, in such a manner, that when the governor makes a deflection in consequence of an increase of speed in the motor, the part acting on the piston pump approaches the said center line, in consequence of which the functional movement of the pump piston is diminished, so that a smaller quantity of motive fluid is fed into the motor, the speed of which is thus reduced to the normal.

In the accompanying drawing are shown by way of example various forms of this invention.

Figures 1, 2, 3, and 4t show the one of the forms, partly in section and partly viewed from one side, while Figs. 5 and 6 show the other form, partly viewed from the side and partly in section. Fig. 7 shows a modification of a detail and Fig. 8 another modification.

In the web 1 of the fly wheel 2 of the motor is journaled a pivot 3, which on the part situated outside the web carries a governor weight l, connected with a spring 5 fixed to the web, the tension of which spring 5 is adjustable and counteracts the action of centrifugal force on the governor weight, the deflection of which weight is thereby kept within suitable limits. On its end sit-uated inside the web 1 the pivot 3 carries an arm 6 which is provided with a preferably annular extension 10 having formed thereon a shoulder 7, which shoulder once during every revolution of the motor shaft impinges on the pump piston S, which projects from Specification of Letters Patent.

Patented July 114 1314.

Serial No. 733,088.

the housing of the motive fluid pump, whereby the piston becomes lifted, driving a certain quantity of motive fluid or liquid to the motor cylinder. The return movement of the piston is brought about in the usual manner by a spring 9 placed in the housing of the pump. That part of the arm 6 which is provided with the shoulder 7 may suitably be in the form of a ring 10, surrounding the motor shaft. l/Vhen the governor weight 4L in consequence of an increase of speed of the motor is deflected, 2'. 6. turns round the axis of rotation of the pivot 3, the shoulder 7, as will be seen from Fig. 3, is moved toward the motor shaft. As a consequence of this the distance which the shoulder moves the pump piston 8 into its casing is less than when the motor is running with its normal speed, whence a smaller quantity of motive fluid is fed into the motor cylinder, so that the motor reassumes its normal speed. The greater the increase of speed, e. e. the greater the deflection of the governing weight, the smaller the distance which the shoulder moves the pump piston, 2'. e. the less the feeding in of the motive fluid.

As in the arrangement shown in Figs. 1 to 3 also in the arrangement shown in Figs. 5 and 6 and which, as far as the parts 1 to 6 are concerned, is in the main similar to the previous arrangement, the arm 6 is provided with a ring 11 surrounding the motor shaft. The said ring 11, which is eccentric relatively to the motor shaft, is, however, not provided with any shoulder, but is embraced by a strap 12, provided with an arm 13, the free end of which arm, which end is connected with a guiding link 14 mounted on a fixed part of the machine, acts on the pump piston 8, or on a part connected with the same. The arm 13 may also be articulated to a part longitudinally displaceable in the guide 15. The eccentric strapmay be connected with a rocking arm of the kind commonly employed for obtaining a rapid injection. The part 11 may obviously be in the form of a disk, if the motor shaft does not pass through it. When the governor weight at an increase of speed of the motor makes a deflection, the eccentricity of the ring 11 will-as will readily be understood be diminished, the obvious consequence of which is a diminution of the distance which the pump piston 8 is moved by the eccentric 11, 12. This arrangement thus works analogously with the arrangement previously described. The impact to which the governing device is exposed at each functional movement of the pump piston is transferred to the governor weight, the inertia of which must therefore be sogreat, that the weight. does not move out of its position of equilibrium.

In Fig. 7 is shown a device in which there are two governor weights 4 and 4U, of which only the one, e is connected with the other parts of the device. The weight 49 is also fixed to the web of the fly wheel by means of a pivot. The two weights are connected with each other by means of a link 4:", which h'assuch a position that if the weight 4% in consequence of an impact strives to move outward, this tendency is by means of the linl; 4 and the weight 4' transferred to the pivot of the latter weight and thereby entirely or partially counteracted. In a double motor the two governor weights L and a can work in conjunction each with a motive fluid pump.

Fig. 8 shows a modification of the device shown in Fig. '7. In this modification the link 4 is omitted, and instead of the same each of the governor weights carries a round, rotatable disk 4 against which rests a prolongation of the other weight. The mode of action of this device is, as to the transfer ofthe tendency of the one weight to move outward to the pivot of the other weight, similar to the one of the device shown in Fig. 7.

7 Instead of acting on one pump piston only v a during a revolution the shoulder 7 can act on two or more pump pistons, one or more of which can serve to force water into the working chamber or chambers of the motor.

Having now described our invention, what we claim as new and desire to secure by Let ters Patent is: y Y

1. A governing device for combustion motors, embodying therein a motor and a pump for supplying motive fluid thereto, a plurality of spring controlled weights carried by a rapidly moving part of the motor, means for operating said pump connected with said weights, and means for interconnecting said weights whereby. the outward tendency of one weight occasioned by operation ofthe pump is transmitted in a sub stantially straight line to the other weight.

2. A governing device for combustion motors, embodying therein a motor and a pump for supplying motive fluid thereto, a pair of weights each pivotally mounted on the fly wheel of the motor, springs for limiting the centrifugal movement of said weights, means for actuating said pump connected with said weights, and a connection between. said weights whereby the tendency of one weight to move as the result of actuation of said pump is transmitted in a substantially straight line to the pivot of the other weight and such tendency is thus counteracted.

In witness whereof we have hereunto set our hands in presence of two witnesses.

CARL ALRIK HULT. OSCAR VVALFRID HULT. W'itnesses:

ENTA PRIM, H. B. OHLSSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

